A subscriber on Tuesday, 1st March 2011 at 3:50 pm
A subscriber on Tuesday, 21st June 2011 at 12:24 pm
Coca-Cola denies US consumer group’s claim that its colouring ingredient causes cancer; yet the company says it will modify its drinks in India like it has in California
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Go diesel
Diesel engines have improved vastly over the past decade, and the best diesel cars now rival – and sometimes surpass – their petrol counterparts
Diesel cars have long had a – somewhat deserved – reputation for being slow, unrefined and noisy. A technology called indirect diesel injection (IDI) is to blame for this. IDI engines are sluggish and, even when used in conjunction with a turbo charger, which enhances power, suffer from terrible lag in power delivery. Some diesel cars still come with these engines.
However, most modern diesel cars use a technology called common rail direct injection (marketed under the names CRDi, TDi, TDCiDDiS, Quadrajet and so on). CRDi was first used in the late 1990s, and has since evolved into a sophisticated way of controlling a diesel engine using modern computer systems. It has helped improve the power and performance of diesel engines and reduce emissions. And since turbochargers are an integral part, most CRDi engines are quite powerful and have little or no lag in power delivery. Though diesel cars are still not quite as refined as some of their petrol counterparts, common rail technology has transformed them from the ponderous, smoke-belching slowcoaches of yesterday into sporty, fuel-efficient and clean vehicles.TO READ FURTHER... Please Login, Register or Subscribe Featured Articles
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